Obtaining Nutrition in Organisms
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Questions and Answers

What is the primary source of energy and materials for autotrophic organisms?

  • Oxygen and sunlight
  • Carbon dioxide and water (correct)
  • Nitrogen and phosphorus
  • Complex substances from other organisms

    • How do heterotrophic organisms differ from autotrophic organisms in terms of food intake?

  • They depend on other organisms for their food (correct)
  • They directly absorb carbon dioxide and water for nutrition
  • They rely on complex substances obtained from inorganic sources
  • They undergo photosynthesis to produce their own food

    • Which process fulfills the carbon and energy requirements of autotrophic organisms?

  • Fermentation
  • Photosynthesis (correct)
  • Respiration
  • Transpiration

    • What role do enzymes play in the breakdown of complex substances for use by organisms?

    <p>Aid in the breakdown of complex substances into simpler ones</p> Signup and view all the answers

    How do autotrophs differ from heterotrophs in obtaining energy?

    <p>Autotrophs absorb energy from the sun, while heterotrophs get energy from food</p> Signup and view all the answers

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